Clearing the Air in Gas Delivery

MIG and TIG welding, plasma cutting, laser cutting or welding all require compressed gases. How these gases are stored, handled and used will determine the extent that the overall cost of these gas products impacts your bottom line. The correct gas delivery system will provide the most economical and efficient results to complement any of these applications – and the normal starting point for all of them is a cylinder of gas and a regulator. 
Gases: Articles

What You Should Know About Shielding Gas

Sometimes overlooked as a factor in weld quality and productivity, shielding gas can play a significant role in improving welding performance.
Knowing how to select the appropriate shielding gas for the application can go far in helping obtain the desired welding performance and minimizing the downtime for rework caused by poor weld quality. Here are some of the basics of what you should know about shielding gases.

Common Shielding Gases Used for Arc Welding

Each gas has different properties that affect how it responds under the heat of a welding arc, include its reactivity, ionization potential and thermal conductivity. Reactivity effects whether or not a certain gas or gas mix can be used with certain materials. These properties also affect various shielding gas operating characteristics and effect bead shape and penetration profiles.(Click on photo to enlarge it)
The variety of shielding gases used in arc welding can be confusing as to when to use which gas for which application. Here are some basic guidelines to follow.

View the entire Gases article archive


Gases: Industry News

Linde Wins Award

EVOS Ci is the first lever-operated valve with live content indicator 22. An integrated real-time content gauge allows users to see the amount of gas left at a glance.
Their EVOS Ci gas cylinder valve wins the Red Dot Award: Product Design 2015 for international product design.

Airgas Reports Fiscal 1Q 2015 Earnings

The industrial welding gas supplier reported that first quarter sales increased by 3 percent over the prior year, to $1.31 billion, and they anticipate long-term growth in U.S. manufacturing.

Linde Launches New Safety Program

Estimates reveal that up to one-third of global acetylene retail sales are collected and transported in unventilated vehicles that could build up flammable acetylene in the event of a leak. Many vehicles are also not fitted with appropriate restraints to prevent cylinders from toppling over and knocking open handwheel valves.


Gases: Products

Innovative Pipe Purging System for Welders

Equipped with unique Quick-Connect fittings, components snap on and off in seconds. Standard harness lengths can be customized by individual needs to place the bladders outside the heat-affected zone. These flexible, high heat harnesses can be navigated through elbows and T-joints, and have a central point marked with a luminescent indicator for easy alignment with the center of the root gap.
Components of the versatile and adaptable I-Purge and I-Purge X Modular Inflatable Bladder Systems combine to offer welders more customized solutions for pipe purging than ever before.

Proportional Gas Mixers

An Argon-CO2 Gas Mixer from Miller Electric. Proportional gas mixers reduce setup time, reduce costs associated with pre-mixed gases and reduce the number of cylinders stored in the facility. No electricity is required, and a simple interface allows for easy operation and training. 
These proportional gas mixers precisely combine Argon Helium, Argon Hydrogen and Argon Oxygen and eliminate the stratification of these gases after sitting for long periods of time.

Specialty, High Purity and Laboratory Gas Regulators

The Victor Specialty Gas Control line-up of specialty, high purity and laboratory gas regulators includes the Spec Master HP600 series regulator that is designed for primary gas control of non corrosive, high purity gases up to 6.0 purity grade. 
Victor Technologies offers general purpose to corrosive and toxic grade 6.0 gas solutions with aesthetic and ergonomic designs coupled with improved snap-on tamper proof gauges.